diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 333bc3c0..d6cfac07 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -14,7 +14,7 @@ repos:
       - id: forbid-new-submodules
       - id: trailing-whitespace
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.1.5
+    rev: v0.1.15
     hooks:
       - id: ruff
       - id: ruff-format
diff --git a/docs/settings.rst b/docs/settings.rst
index e9edffde..4ae608c6 100644
--- a/docs/settings.rst
+++ b/docs/settings.rst
@@ -1008,6 +1008,11 @@ the ``TAG_FEED_ATOM`` and ``TAG_FEED_RSS`` settings:
    to ``False``, the full content will be included instead. This setting
    doesn't affect Atom feeds, only RSS ones.
 
+.. data:: FEED_APPEND_REF = False
+
+   If set to ``True``, ``?ref=feed`` will be appended to links in generated
+   feeds for the purpose of referrer tracking.
+
 If you don't want to generate some or any of these feeds, set the above
 variables to ``None``.
 
diff --git a/pelican/settings.py b/pelican/settings.py
index 29051ddb..47457ec1 100644
--- a/pelican/settings.py
+++ b/pelican/settings.py
@@ -52,6 +52,7 @@ DEFAULT_CONFIG = {
     "TRANSLATION_FEED_ATOM": "feeds/all-{lang}.atom.xml",
     "FEED_MAX_ITEMS": 100,
     "RSS_FEED_SUMMARY_ONLY": True,
+    "FEED_APPEND_REF": False,
     "SITEURL": "",
     "SITENAME": "A Pelican Blog",
     "DISPLAY_PAGES_ON_MENU": True,
diff --git a/pelican/utils.py b/pelican/utils.py
index 5f161667..86698aee 100644
--- a/pelican/utils.py
+++ b/pelican/utils.py
@@ -132,6 +132,10 @@ class DateFormatter:
 
     def __init__(self) -> None:
         self.locale = locale.setlocale(locale.LC_TIME)
+        # python has issue with Turkish_Türkiye.1254 locale, replace it to
+        # something accepted: Turkish
+        if self.locale == "Turkish_Türkiye.1254":
+            self.locale = "Turkish"
 
     def __call__(self, date: datetime.datetime, date_format: str) -> str:
         # on OSX, encoding from LC_CTYPE determines the unicode output in PY3
@@ -922,6 +926,10 @@ def temporary_locale(
     class to use the C locale.
     """
     orig_locale = locale.setlocale(lc_category)
+    # python has issue with Turkish_Türkiye.1254 locale, replace it to
+    # something accepted: Turkish
+    if orig_locale == "Turkish_Türkiye.1254":
+        orig_locale = "Turkish"
     if temp_locale:
         locale.setlocale(lc_category, temp_locale)
     yield
diff --git a/pelican/writers.py b/pelican/writers.py
index d405fc88..1c41b4ee 100644
--- a/pelican/writers.py
+++ b/pelican/writers.py
@@ -53,6 +53,9 @@ class Writer:
         title = Markup(item.title).striptags()
         link = self.urljoiner(self.site_url, item.url)
 
+        if self.settings["FEED_APPEND_REF"]:
+            link = link + "?ref=feed"
+
         if isinstance(feed, Rss201rev2Feed):
             # RSS feeds use a single tag called 'description' for both the full
             # content and the summary
diff --git a/pyproject.toml b/pyproject.toml
index eb1884a9..3ca06df4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -69,6 +69,7 @@ changelog-header = "###############"
 version-header = "="
 
 [tool.pdm]
+ignore_package_warnings = ["sphinx"]
 
 [tool.pdm.scripts]
 docbuild = "invoke docbuild"
@@ -95,7 +96,7 @@ dev = [
     "pytest-xdist>=3.4.0",
     "tox>=4.11.3",
     "invoke>=2.2.0",
-    "ruff>=0.1.5,<0.2.0",
+    "ruff>=0.1.15,<0.2.0",
     "tomli>=2.0.1; python_version < \"3.11\"",
 ]